First confirm the covered discipline, then assemble evidence of knowledge, practical ability and direct support of professionals. The preparation timetable depends on the availability and adequacy of those records, not a standard delay attached to the technician title.
Track the evidence-gathering step separately
Assign each missing item to someone able to provide it and agree on a delivery date. Review the completed evidence before committing to an application or travel date. If the actual work falls outside the category, more time spent polishing documents will not solve the eligibility problem; obtain advice about the appropriate next step.
Add one further sequencing decision that is easy to leave unassigned. Once the evidence is complete and the role is confirmed as fitting, someone should own the question of whether it still fits later, because technical roles are reorganised frequently and a technician's work can migrate toward project coordination, vendor management or team leadership without anyone treating the change as anything but a career development. The authorization relates to a particular employer and the position described, so a material change of duties deserves advice before it takes effect rather than after.
Agree who compares the actual work against the description annually, and what triggers an earlier look — a reorganisation, a change of reporting line, the departure of the professionals the role supports. Hypothetical example: a network measurement technologist is moved under a delivery manager in year two and given a scheduling remit, and the change is examined in advance because somebody had been made responsible for examining it.